<template>
    <div class="icons">
      <swiper :options="swiperOption">
           <swiper-slide  
             v-for="(page,index) of pages" 
             :key="index">
               <div 
                   class="icon" 
                   v-for="item of page" 
                   :key="item.id"
                >
                    <div class="icon-img">
                       <img class="icon-imgcontent" :src="item.imgUrl">
                    </div>
                    <p class="icon-desc">{{item.desc}}</p>
                </div>
         </swiper-slide>
      </swiper> 
      <div class="swiper-pagination"  slot="pagination"></div> 
    </div>
</template>

<script>
export default {
    name:'HomeIcons',
    props:{
        list:Array
    },
    data(){
        return{
             swiperOption:{
                autoplay:false
            },
            
        }
    },
    computed:{
        //标签分页(通过二维数组达成)
        pages(){
            const pages=[];
            this.list.forEach((item,index)=>{
                const page=Math.floor(index/8);
                if(!pages[page]){
                    pages[page]=[];
                }
                pages[page].push(item)
            })
            return pages
        }
    }
}
</script>

<style scoped>
.icons>>>.swiper-container{
    height:0;
    padding-bottom: 50%;
}
.icons{
    margin-top:0.1rem;
}
.icon{
    position: relative;
    overflow: hidden;
    float: left;
    height: 0;
    width: 25%;
    padding-bottom: 25%;
}
.icon-img{
    position: absolute;
    top:0;
    left: 0;
    right:0;
    bottom:0.44rem;
    padding:0.1rem;
    box-sizing: border-box;
}
.icon-imgcontent{
    height: 100%;
    display: block;
    margin: 0 auto;
}
.icon-desc{
    position: absolute;
    left: 0;
    right:0;
    bottom:0;
    height: 0.44rem;
    line-height: 0.44rem;
    text-align: center;
    color:#333;
    overflow: hidden;
    white-space:nowrap;
    text-overflow: ellipsis;
}
</style>